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Transcription and Regulation

Transcription and Regulation
Transcription factors are

CATT boxes
promoters
proteins which bind to DNA and regulate transcription
TATA boxes

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Transcription and Regulation
Transcription by E. coli polymerase occurs in

three phases known as initiation, elongation and termination
four phases known as initiation, propagation, elongation and termination
None of these
two phases known as initiation and termination

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Transcription and Regulation
Transcription begins

none of these
downstream from the start codon
at the start codon
upstream from the start codon

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Transcription and Regulation
Immediately after transcription

both (a) and (b)
a poly adenylation signal is added
a methylated guanine cap is added to the 31 end of the transcript
a methylated guanine cap is added to the 51 end of the transcript

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Transcription and Regulation
The RNA polymerases that transcribe bacterial DNA are

multisubunit enzymes
highly glycosylated in their active forms
only active inside the cell
interchangable with DNA polymerases

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Transcription and Regulation
In eukaryotes, there are three different RNA polymerases. The RNA polymerase responsible for transcription of mRNA is

RNA polymerase III
RNA polymerase I
none of these
RNA polymerase II

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